(i) Budgrafting is done by the insertion of a strip of bark containing a bud from highyielding clones under the bark of a young seedling till they become united in 3-4 weeks. The old seedling stem is then sawn off above the grafted bark which then grows to form the new rubber plant. (ii) Transplantation involves the sowing of rice seeds in nurseries at the beginning of monsoons. When the plants are about 15-20 cm tall they are uprooted and replanted in parallel rows at regular intervals in flooded fields and left to grow till they mature.